1- Make sure you have the Blu-Ray drive attached or the QA Toggle package won't work.
2- Download the Rebug QA_Toggle package from here (toggle_qa.pkg)
3- Put the "toggle_qa.pkg" on USB and Install it on the PS3.
4- Run the "Rebug Toggle QA" from XMB, the screen will go Black and you will see HDD Led activity then if all went fine you will hear one Beep and the PS3 will Restart back to XMB.
5- If you want to make sure QA flag was set, go to "Network Settings" then apply the following key combo (all at the same time):

L1 + L2 + L3 (press left stick) + R1 + R2 + dpad_down

You should see Edy Viewer, Debug Settings, and Install Package Files if done correctly.

PS3 Brick-Recovery Procedure from Rogero CFW 4.21 to CFW 3.55

Following up on his Rogero CEX PS3 Custom Firmware (CFW) v4.21 release that bricked many PS3 consoles, PlayStation 3 homebrew developer Rogero has now made available a PS3 Brick-Recovery Procedure from CFW 4.21 back to CFW 3.55 using Rogero PS3 NOR Auto Patcher v0.01 as outlined below.

To quote: Brick-Recovery Procedure from CFW4.21 back to CFW3.55

After Testing with some bricked Slim consoles (from updating to CFW4.21) with different friends and testers around the world, I can confirm that Bricked consoles can be recovered back to CFW3.55 even if you didn't have a NOR Dump/Backup.

Requirements are:

1- A Hardware Flasher so you can read/write to the PS3 NOR flash
2- A Dongle with PSgrade payload (any old jailbreak dongle + PSGrade hex will do) used to Enter Factory Service Mode (FSM)
3- Rogero CEX-3.55 CFW V3.7

Recovery Procedure :

1- Dump the current NOR Flash of the bricked PS3 at least 3 times using a hardware flasher (Progskeet / E3 / TEENSY++)
2- Verify that it is properly dumped and you have a valid dump by comparing your dumps or following these steps: Validating_flash_dumps (via ps3devwiki.com/wiki/Talk:Validating_flash_dumps)
3- Patch the dump using Rogero PS3 NOR Auto Patcher: PS3_Nor_Dump_Auto_Patcher_v0.01.rar
3- Flash the Patched Dump back into the PS3 NOR using the Hardware flasher.
4- From this point you can continue as a normal Downgrade Procedure by entering Factory Service Mode using the dongle and Flashing Rogero CEX-3.55 v3.7 from the USB stick.

Notes:

I didn't receive any Brick report from any FAT PS3 that updated to CFW4.21, so it seems FAT consoles are not being affected by the bug.

Apparently only the last downgradable Slim models are affected (CECH-25xx with Datecode 1A and base FW version = 3.50)

I also know that there are also few Slims that bricked with model CECH-20xx but 90% of the reports were model (CECH-25xx with Datecode 1A and base FW version = 3.50).

The Brick may be caused by the boot-loaders not being written correctly into the NOR during the Update process.

Please note also that all the above info may not be 100% accurate, things are still being worked on so nothing is confirmed at all and I don't promise anything about an updated CFW.

CECH 2504B BRICKABLE Slim

CECH 2501B BRICKABLE Slim

CECH 2501A BRICKABLE Slim

CECH 2511A ACCEPTABLE Slim

CECH 2004A ACCEPTABLE Slim

CECH 2504A ACCEPTABLE Slim - possible bricks

CECH 2011A ACCEPTABLE Slim

CECH 2001A ACCEPTABLE Slim

CECH 2104A ACCEPTABLE Slim

CECH2004B N/A N/A

CECH 2101A ACCEPTABLE Slim

CECH 2004B ACCEPTABLE Slim

CECH-2504A BRICKABLE Slim

CECHJ 04 ACCEPTABLE Fat

CECHL 01 ACCEPTABLE Fat

CECHG 01 ACCEPTABLE Fat

CECHL 11 ACCEPTABLE N/A

CECHK 01 ACCEPTABLE Fat

CECHL 04 ACCEPTABLE Fat

CECHK 11 ACCEPTABLE Fat

CECHH 01 ACCEPTABLE Fat

CECHG 04 ACCEPTABLE Fat

Note: This isn't set in stone. Have a hardware flasher or know how to recover even if your console model is acceptable. Make a multiMAN NAND/NOR backup and ensure QA flags are set!!! Hope you have a great time!

Then it will ask you to input a address, here you will input the ip address which you saw on the LG5Tool (Some may say 192.168.0.4, some maybe different), Port number is: 8080 after doing that scroll across >> UPnP = Enable >>

Then you will see press the X button to save settings click X >> Test connection and When you test the connection the first 2 Ip address & internet connection should say successful. DO NOT SIGN IN TO PSN YET!!

Then (and this part is really important guys) on the LG5Tool UNTICK where it says Firmware update >> After its unticked then you can go to sign in on PSN, If you don't untick it you might have a error on your PlayStation and if you do then you have not unticked firmware version!!

Changelog.
All versions are created to do same thing connect to PSN with lower FW. Passphrase is only changed.

How to Get on PSN Using Yet Another Bypass 1.8 for Noobs Tutorial by MacAmb

Hey guys i just wanted to share this brief guide about using YAB 1.8 to get on PSN because a lot of members and users still don't know how to use it. In this Method PC is required.

PC Side:

1- download YAB 1.8 (above) and extract it to desktop or anywhere.
2- open That Folder and run YABStart and noting will appear just a black screen will flashes .but its thats how its running.
3- now to get your IP for your Active Network Wireless or Lan Go to Start and then click on Run then type CMD and after that type Ipconfig it should appear a list Networks now take a note the Active one and remember it its something like this: 192.168.137.1 and close cmd.

1- Go To Setting and Internet Connection Settings > Custom > Choose either Wired Connection or Wireless > IP Address Setting Automatic > DHCP Do Not Set > DNS Setting Automatic > MTU Automatic >Proxy Server Use :filed the IP Address of your Active Connection IP in Address and use 27 in Port No. you can change it if you want in Config > UPnP Enable > now Press X to save the Setting and test the Connection.

That's it should be all set and working.. some notes: if you got IP Succeeded and Internet Connection Failed then just turn off any firewall and remember when you turn of your PC and turn on again to get on Online just use Step 2 in PC side.

Make sure that you do not have to install Spoof if you have one deinstall it

Download SGK-SPOOF-4.30 and install via "Install_Package_Files"

Cobra CFW

1: Deinstallez the spoof via Multiman
2: Teturn to XMB
3: Start-SGK-SPOOF-4.30. This will ask you to select: say yes to the two questions.
4: To disable start a new SGK-SPOOF a 30.4-Unable spoof called and it will not disable spoof poster, say yes

Dongle CFW

1: Downgrade your dongle in 2.5
2: Return to XMB
3: Start-SGK-SPOOF-4.30. It asks you to say yes to activate 2 questions.
4: To disable start a new SGK-SPOOF-4.30 to spoof Unable called and it will not disable viewing spoof, say yes

All CFW 3.55 Standard

1: Uninstall any spoof install on your PS3 (Rebug spoof style 2.2 4.11)
2: Return to XMB
3: Start-SGK-SPOOF-4.30. It asks you to say yes to activate 2 questions.
4: To disable: run again SGK-SPOOF-4.30 spoof Unable to say no and it shows you disable spoof, say yes SHIFT